Metal-molding machine



F. MANTEE METAL MOLDING MACHINE Filed Feb. 18, 1926 p 4 MN W 4 w a v w/ MW a W/ Y MW w July 6 1925.

V Patented July 6, 1926.

' FRANZ MAurErjorsrUTreART; eiahrrhu essienon 'r'c WALTERJKOVSTELEZKY, or

; srUTTGARm-eERM uY r i "iymrenmctmfiqM QEINE- 7' Application fil arepr gi ig sges riai 1w."89,11 .27; and i h rmaiiy fra uer 14, 1 925. I

M y inveiitio'n relates I to metel molding machines of the kind in which the 'In'old'is automatically lowered jintoe crucible, to-fill it with molten metal, and "in which a ram 5 enters the mold to'coinpect the metal there in; Heretofore the ranhwhich has-not been; i ectuated itselhhas been "so errangedthatit Y does not come intocontact ys zith the metal till the latter 'is partly' solidifiedyen'd is inlet lfl 'ductile or pasty state. i v i According to my invention the actionigof the ram is not solely dependent on the'niove-j ment of the mo1d,,but' theiramli's given 9;

l5 movement whereby it is ea'us'ed'to act ontheor semi-liquidfstate, which improves the quality of the casting. Theectionof the ram onthe metal may begin While'the'mold j is still in the bath from which thednetalfis V v i fpas'ses upwardsthrough-the pillar 2, a n'd,,

fiu vone position into Which the bracket 31 taken.

I may efiect the raising lowering of; the mold by means of a piston in a? cylinder,

t and compressed air lor, other driving fluid. I Inay also provide means ,Whereby the mold is automatically opened shortly before'rthe en fthe yc o op ra i ns, o; that' he casting canbe taken out, zi-nd'l may provide ye bucket, which hasa' 'p erfloration et the bot m, and into Which the mold i lowe ed before entering. themetal bath. V I m "An embodiment of thei-nvention' is shown in the accompanying drawing, in WhlCh- Fig. 1 is an elevation of the machine, partly insection and partly broken away, and

Fig; 23 Vertical section atflstr'eight' angles to the pla ne of Fig li Y b I y The me'ch'ariismis carried by a bracket 3 rotatable about the upper end I 'of'ja pillar 2,,

At the opposite side ofthe pillar there is e similar bracket supporting similar mechanisin, but this is broken ew'ayin Fig. 1. To the bracket 3' erelfixedtwo cylinders 4L and 5, which support ayoke' 6; on which is mounted the main power cylinder 7 pro- 45 vided with a velye cylinder or box 7 The piston 8 in the cylinder? is connected by its red 9 With a cylindrical casing 10, haying fixed to its lower end attibe 12. Within the rods 15, 16' of the perforated i -p ,13-, 1 7 located in the"said cylinders ii'an'd" 'are oflevers 22 and links 22 i which is slidable Within'the casing andto metal While the'latter still in ali quid lower end of-thelatter. is the upper partllf I fixedto a flairge onthe casing 1 0, The

(lasing 10 has fixed to "it two cylinders 18;

1.9 with Valvefcylinders"18 19 :The frod 19f of a piston'in' the c ylin'c'ler '19"- is conwhich is .con-necteda rain 21 Within the easiirg 10 endtube 12 The rod 18" of'a pis I 7 ton 'in the cylinder 18 is fconnected lby a pair 7 With a disk 25,1 c

which the bottom part 25 of the moldc is connected by" rods '24, on-ly one of whichis Visible in the; drawing. A pipe 26'connects the" cavity in the mold with a duct inthe flange 17 and with the hollow piston-rod 15;

so that by downward moyemerito-f the more relatively-- to the cylinder air is exhausted from the mold: A' compressed air pipe 27 tion With it pipe 28- to the'cylin-der The holloiwpiston rod v16 communicates by ineansflofa; union 30 with pipes 31, 82 leadin'g'tothe end 19' respectively.

valve cylinder 4 18 there is a, cylindrical Upon thecrucible 33- guidefor .a Vertically movable bucket 45, 1. i vhich' is 'bala-ncedby eights 46 and hes in its bottom a hole 47 for the ingcte ofthe pipe 28 -leading to*theyalye 'eyl- 111L181" .7 A branchfpi-pe29' leads from the mold." The guideM is holl ow'atft8, and

cooling liquid may be passed through its ca'vity For "makingiaycast'ing the bracket 3 is roair-enters the power cylinder Fxaboye the v piston 8 and forces this piston downwards} r 00 tet'ed so that the'tube'12 iththemoldis-, exactly above the bucket 45011 the crucible v A: hand lever 34.

togetherwith the partsconnected' withthe Same/ a id including the nioldi The latter is thuslowered into the bucket'fl tfi, and is plunged therewith into the crucible, and at the Seine time air'is suckedfrom the moldby the piston 13. The bucket protects the" exterior of the; mold, except at the' ingate, from contact With the molten metal, so that the outside of the mold does n-otbecomef coated, end excessive heating of the "mold is prevented. W'Vhile the moi'clfiis being ment'39 on a rod "lever to push down dipped into the crucible a lever connected .by a red 35 tothe valve in the valve cylinder-"19? strikes an abutment moved to admit com V 34, and the'lever 3% is thus rocked to admit V compressed air below" lifts vthe lowered mechanism;

the piston which a While the mechanism is ascending the liquid m'etaiin the moldsolidifies, and the lever 35 strikes a n abutment 41 on holder 37, causing the valvein the valve cylinder 19 to be moved sothat the piston in the cylinder 19 lifts the r ram 21. 'At the same time'a'lever 42 concylinder 18 l 2 L, so that the lower pai t 25 I isremoved from the part can be taken out.

nected 7 strikes an abutment 43, causing the piston in the cylinder 18 to actuatethe levers 22 and depress the disk 23 androds of the mold v 11 ,'and the casting v Themachine can then be rotated through, 180 to place the other bracket with its molding mechanism,nover the crucible.

"It will be understood that I may use mo,- tive fluidother than compressedair for ac-f tuatin'g the mechanism. 1

to 'secureby' LettersfPatent of the United States-is 1. In a metal molding m'achine the comb nation of a mold carrier,'mechanism for ;raising and lowering said mold carrier "whereby the, mold held thereby can be dipped intoa metal bath, a'vertically mov-- able ram for compacting the metal in the mold, and mechanism for rais ng and lowering'said ram., V 2. In a metal mold ng machine the combHlEL SlOIIVOI a mold carr er, a ram for compacting 'metalin the mold held in saidmold carrier, 7 ing and fiuid operated mechanism for raislowering said mold carrier, whereby the mold'caiibe dipped in a metal bath, and; fluid operated mechanism for; raising and lowering said ram.-

' 3. V'Ihe combination claimed in claim 2,

' the mechanism for raising-and lowering the mold carr1er11ncluding acylinder, a piston movable casing, and

therein, a piston rod, a

Ia guide for said casing, SEtlCl casing enclosing part ofthe mechanism for moving theram. .l

The the mechanism for combination claimed in claim 2,

movin the rain includ- "ing a' cylinder raised and lowered by the a actuating mechanism of the mold carrier, a t

T Y piston therein,'valve mechanism controlling the supply of fluid .to said'cylinder, and,

this pressure is i (Fig, 2) strikesan abutin a metal by a rod 42 to the valve in thevalve I What I claim as my invention anddesire stationary abutments'j for actuating said valve mechanism. r

5. 'The combination claimed, in clairn'l,

together ,with "mold opening mechanism comprising a cylinder-raised and lowered by the actuating mechanism of the mold' valve mechanism" carrier, a piston therein,

controlling the supply'of fluid to said cylinder, andstationary abutments for actuating said valve mechanism.

I 6. In a metal molding machine the com bination' of a mold carrier, mechan sm for raising and lowering said mold carrier whereby the mold held thereby can be dipped bath, mechanism for" raising and loweringsa'id mold carrier, a vertically movable ram for compacting metal in the mold, mechanism for raising and lowering said ram, an air-conduit fixed to: said mold l carrier for'exhausting air from the mold, a.

cylinder, and a perforated piston in said cylinder: having a hollow piston" rod connected to said air conduit. Q V i '7 In ametal moldingmachine the combination of a moldcarrier, mechanism for raising and lowering said 'mold carrier, whereby the mold held 7 thereby; can be dipped into a metal bath, "a .ram for compacting metal in the mold, a 'movable cyl inder raised and lowered by the actuating mechanism of the mold carrier, a piston in said cylinder, means connecting said piston to; said: ram, a pipe for supplying motive fluid to said cylinder, astationary cylinder,

a perforated piston in said stationary cylinder having a hollow pistonrod connected to said pipe, and means forsupplying fluid under pressure to said stationary cylinder.

- 8. In a metal molding machine the combination of a mold carrieiysmechanism for raising and lowering said mold carrier thereby can be metal bath, and mechanism l OI mold, saidmold opening mech anism includinga'movable cylinder raised whereby the mold held dipped in a opening the and lowered by the actuating mechanism of the mold carrier, a stationary, cylinder, a

perforatedpiston in said stationary cylinder having a hollow piston rod, a pipe'connecting said piston rod to said'movable cylinder,

and means for supplying fluid under pressure to said stationary cylinder.

9. In a metal'holding machine the" combination of crucible, amold carrier, mechanism for raising and lowering said mold carrier whereby the mold held thereby can be dipped into said crucible, anda vertically movable bucket in the path of said mold carrier having a hole'in' its bottom;

10. The combinationclaimed in claim 9, togetherrwith a guide for the bucket having a cavity for admission of a coolingmedium.

In Witness'whereof I have signed this specification; a V e I FRANZ MANTEIV 

